Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JF

Joseph C. Fields — 2 Patents

DIDiversey: 2 patents #116 of 343Top 35%
Farnhamville, IA: #1 of 2 inventorsTop 50%
Iowa: #6,094 of 15,303 inventorsTop 40%
Overall (All Time): #2,023,039 of 4,157,543Top 50%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8959699 Mop head fixation device and method Andrew M. Bober, Eric R. Evenson, Daniel S. Pica, Axel Schmitz, Alfred Widmer +3 more 2015-02-24
8464391 Mop head fixation device and method Andrew M. Bober, Eric R. Evenson, Daniel S. Pica, Axel Schmitz, Alfred Widmer +3 more 2013-06-18